Coleopterological Notices, III. 133 



of basal pale spots on the elytra, by the finer sparser punctuation, 

 smaller and more distant eyes and dark legs. 



M. gracilis Lec.^ — Proc. Am. Phil. Soc, XVII, p. 615. — Elongate, moder- 

 ately convex, subparallel, polished, black tlirougliout ; legs black, the tarsi 

 slightly paler ; antennae dark rufo-ferruginous ; pubescence flne, moderate in 

 length, rather sparse and inconspicuous. Head with a feeble impression at 

 the middle of the interocular surface, rather coarsely but sparsely punctate ; 

 eyes large and convex, separated by two-fifths more than their own width ; 

 antennse nearly two-fifths as long as the body, robust, feebly attenuate toward 

 apex, the intermediate joints fully three-fourths longer than wide, feebly 

 obconical, third and fourth equal in length. Prothorax about one-third wider 

 than the head, nearly one-half wider than long, the apex two-thirds as wide 

 as the base, subtruncate ; base transverse, the sinuations almost obsolete ; 

 sides subangulate at apical third, thence very feebly divergent and straight to 

 the basal angles, more strongly convergent and nearly straight to the apex ; 

 basal angles right, not rounded ; disk vtiry feebly convex, except toward the 

 sides anteriorly where it becomes strongly declivous, rather finely but deeply, 

 distinctly, very sparsely punctate, the punctures becoming coarse and rather 

 dense laterally and anteriorly, broadly, strongly impressed along the middle 

 toward base, the basal foveje almost obsolete. Elytra about four times as long 

 as the prothorax, and, throughout, about three-fourths wider, parallel, the 

 humeri exposed and slightly rounded; apex rather gradually and acutely 

 rounded ; disk with even series of small deep close-set punctures, the rows 

 scarcely visibly impressed, the intervals flat, eacli with a rather uneven single 

 series of smaller punctures. Under surface very finely, sparsely punctate 

 throughout, except the metasternum which is rather more coarsely and densely 

 so, the latter as usual totally impunctate posteriorly. Legs slender, the basal 

 joint of the hind tarsi fully as long as the remainder. Length 5.5 ram. ; 

 width 2.0 nnn. 



Michigan (Marquette). Cab. LeConte. 



The unique type has the partly concealed apical pseudosegment 

 narrow and strongly rounded at apex. I cannot determine its sex, 

 but it is probably a male. 



This species somewhat resembles tenuis, but may be distinguished 

 by its more robust form, larger eyes, more distinct elytral series, 

 absence of humeral pale spot and several other characters. 



IWr. rufipes Lee. — Bost. Jouru., I, p. 170. — Oblong, parallel, rather 

 strongly convex, dark piceous-brown, the under surface rufo-testaceous ; legs 

 flavate ; antennae brown, paler toward base ; integuments shining ; pubescence 

 rather coarse, moderate in length, fulvous, dense and conspicuous. Head 

 broad, inserted in the prothorax nearly to the eyes, feebly, evenly convex, 

 coarsely, rather densely punctate, the punctures distinctly separated ; eyes 

 rather small, separated by about two and one-half times their width ; antennae 



